We've done them twice here...
once a few years ago when my daughter was in Brownies and they did this for a project -
sorry, but I could not go into the room they were
growing in because of the smell :p
:p
the second time I received one really large bulb from my sister for a holiday gift in a really tall vase with colored stones. It was a really pretty set-up, and cost her a small fortune (which was such a rip-off if you know how to do this yourself...), but the odor of that one bulb was enough to knock me out everytime I walked in the front door of the house!!! I ended up throwing the bulb out before it was done!
I know it's a personal preference - scents and all... but this is one I am definitely not able to be around.